import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class MouseMotionEventDemo extends JPanel implements MouseMotionListener {
private int mX, mY;
public MouseMotionEventDemo() {
addMouseMotionListener(this);
setVisible(true);
}
public void mouseMoved(MouseEvent me) {
mX = (int) me.getPoint().getX();
mY = (int) me.getPoint().getY();
repaint();
}
public void mouseDragged(MouseEvent me) {
mouseMoved(me);
}
public void paint(Graphics g) {
g.setColor(Color.blue);
g.fillRect(mX, mY, 5, 5);
}
public static void main(String[] args) {
JFrame f = new JFrame();
f.getContentPane().add(new MouseMotionEventDemo());
f.setSize(200, 200);
f.show();
}
}
|